Solve the problem.A retailer knows that n games can be sold in a month if the price is 
dollars per game. If he buys each game for $9, and if he wishes to make a profit of at least 
per month on sales of this game, how many games must he sell each month?
A. between 30 and 70 games
B. between 20 and 30 games
C. between 20 and 35 games
D. between 30 and 40 games
Answer: D
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Write the rational expression in simplest form.
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A. 
B. ?
C. ?
D. ?
E. ?
Factor out the GCF.5x2 + 15x - 20
A. 5(x2 + 3x - 4) B. 5(x2 + 15x - 20) C. 5(x2 + 10x - 15) D. 5x(x + 3 - 4)
Determine between which two consecutive whole numbers each square root lies.
A. 8 and 9 B. 9 and 10 C. 7 and 8 D. 10 and 11
Solve the problem.The number of miles per gallon of gasoline that a vehicle averages varies inversely as the average speed the car travels. A vehicle gets 27 miles per gallon at an average speed of 49 mph. How many miles per gallon will it get at an average speed of 37 mph?
A. 0.03 mi per gal B. 0.05 mi per gal C. 35.8 mi per gal D. 20.4 mi per gal